Loom



' March 19, 1929. G. B. AMBLER 1,706,371

LOOM

Filed Feb. 24, 1927 2 Sheets-Sheet 1' lnveniow': 660729617. flmieicMarch 19, 1929. AMBLER 157063071 LOOM Filed Feb. 24. 1927 2 Sheets-Sheet2 lnvewv: lleoi'gefl Mien 4 Patented Mar. 19, 1929.

UNITED STATES VPATENTHQEFFICE.

GEORGE B. -AMBLER, OF LEOMINSTER, JWASSACI-IUSETIS, ASSIGNOR T F. 'A.WHITNEY CARRIAGE COMIPA'N Y, OFlL'IEQMINSTER, MASSACHUSETTS, ACORPORATION OF MAS- SACHUSETTS.

LOOM.

Application filed-February 24, 1927. Serial No.-170,493.

This invention relates to looms and in particular to looms forweavingrelatively bulk-y or stiff material which is not well adapted forhandling by the ordinary missile shuttle; ;As an example of suchmaterialI may mention so-called fiber or artificial reed fabrics whichare extensively used in the manufacture of:baby carriages and furniture.The loom which I here disclose as an example of my invention is in somerespects similar to that'disclosedfin the patent to Arrouquier 618,820,Feb 7, 1889, and from one point of view maybe considered as animprovement oniaaloom of the type shown in that patent and one providingfor particularly rapidand accurate weaving.

My inventioni-will be wellunderstood by reference to the followingdescription of an illustrative embodiment. thereof, such parts as arenecessary for an understanding thereof beingshown in the accompanyingdrawings, wherein Fig. 1 isa fragmentary and brokenfront' elevation oftheloom reed and the feeding means for the filling. strand;

Fig. 2 is a sectionon the line 22 of Fig. 1 ona larger scale;

Fig. 3 isa fragmentary end elevation of the filling feedingmcans andvarious driving trains;

Fig. 4 is .an enlarged vertical section through one of the reed dentsand cooperating parts; and v Fig. 5 is a horizontal section showing adetail to be referred to.

In the accompanying drawings I have shown onlyso much of a loommechanism as is necessary to provide a clear understand ing of theinvention. It will be understood that the =warps arel-ed from suitablelet-off v mechanismand pass through the reed about to be described, andthat the finished fabric may pass over abreast beam to suitable take-vup mechanism. ,Any suitable shedding mcans, -as, for instance,harnesses, are employed to form a shed as indicated in Fig.2. All theseparts may be of any suitable or conventional character and-it is notnecessary here to illustrate them. I

Referring now to Figs. 1 and 2 of the drawings, I have there shown asuitable reed 7 having a series of. upstandingdents 9 between which passthe warps and which are adaptedto beat up. the filling. Thereedisreciproeated and preferably is, arranged r to move rectilinearly, hereinbeing shown assliding at its ends on the frames 11 at the sides oftheloo-m and guided thereon by suitable gibs 18. The reciprocatingmotion of-the reed is preferably incessant. In other words, while, ofcourse, in the example shown the reed comes to a dead stop at itsforward and rearmost positions respectively, there is. no dwell orcessation of motion during which time the pick takes'place. Thus, forexample, eccentrics 15 on shaft 17 may -move the reed incessantly with asimple harmonic motion. 1 Among other advantages of. this constructionit may be noted that as the reedmoves forward toward the fell of thecloth to beat up'the filling, while the motion as a whole may be rapid,it is relatively slow at this portion of the cycle so that the fillingis pushed powerfully and gently into the fell of the cloth withoutdanger of its being thrown too far or of its rebounding. v I

Referring nmvtoFig. -1, theend of the filling strand is projectedforward in a manner hereinafter more fully to be described by meansof-one or more pairs of feed rolls ,(two being here shown) which mayembody an upper driven roll ,19 and a 'cooperating'lower driven roll21., these rolls being mounted at'the-side of the loom in a fixedposition as regards the motion of the reed. Suitable guiding means onthe reed, herein shown as fingers 23 cooperating with the dents9,.receive the end ofthe strand and prevent it from buckling or twistingand guide it through the shed to provide a pick .or shot of filling.The. fingers 23 (see Fig. .4) are here shown as grooved adjacent theirlower ends along oneiside thereof as indicated at 25, these grooved sideportions being presented to the dents 9 of the loom while the filling isbeing inserted to form guide eyes and the grooves may be somewhat flaredonithe receiving side as shown to facilitate the passage of the strandtherethrough. As the reed moves'to its forward position, toward theright in'Fig. 2, the ;fingers23 may be swung to the dotted line.position of F ig. 2 to release the pick of filling which is depositedtherefrom and beaten up by the dents 9 into the fell of the cloth. Thenas the reedretreats, the fingers are closed again to the full, lineposition of Fig. :2 or the position of Fig. 4 ready to receive the newpick of filling.

facing wall of this groove and are secured in position by lock nuts 35.Suitable springs may be provided to hold the set screws against the wallof the groove 33 and I have herein shown the main body of each finger ascored out to accommodate helical spring 37, a suitable cross-bar 39being provided for securing one end of the spring while the other may bedetacha'bly hooked to pin 41 projecting from the forward face of thecorresponding reed dent 9. The arrangein ent shown permits individualadjustment of the fingers relatively to the shaft so that the groovedends thereof close snugly against the cooperating faces of the reeddents. The construction is also such that the spring 37 may be unhookedand the entire finger swung counterclockwise, viewing Figs. 2 or 4-, outof the way. Thus, for instance, if it were desired to weave a narrowerfabric on a loom of given construction some of the fingers at the rightof the reed, viewing Fig. 2, could be thus temporarily thrown out ofoperation.

The rock shaft is actuated during the forward portion of the travel ofthe reed and I have herein shown lever arms 43 extending upwardly fromthe ends thereof and carrying cam followers 45 working in the cam slots47 in plates 49 bolted to the loom sides. It will be apparent from Fig.2 that as the reed moves forward from the full line position shown, thefollower 45 will strike the forward vertical. wall of the slot andtravel. downwardly in contact therewith, rocking the shaft and swingingthe fingers 23 to the dotted line position shown, thus releasing thestrand of filling which is beaten up into the fell of the cloth by thedents 9. The feeding rolls previously referred to are driven inaccurately timed relation to the moven'ient of the reed, the shaft 17which reciprocates the latter herein, being shown as taking its motionthrough the bevel gears 51 and a gear train 53 from a power shaft 55.This power shaft 55 through a gear train 57 may drive countershaft 59 towhich is geared the shaft 61 of the feed roll 19 and also, through auniversal-joint 63, the shaft 65 of the feed roll 21, this shaft beingmounted. in a sliding box 67 to permit the roll 21 either to be pressedupwardly toward the roll 19 to pinch the filling strand f between. themand feed the same forwardly or to be dropped downward ly to interruptthe feeding of the strand. This motion is effected by suitable edge cams69cooperating with suitable follower surfaces on'the sliding boxes 67 toreciprocate the latter and the shafts of these cams 69 are hereinshownas driven through a suitable train 70 including a driving gear 72which is in effect formed as a part of the hub of one of the bevel gears51. The shafts of cams 69 and the eccentric shaft 17 are thus operatedin accurately timed relation.

The cycle of-operation is such that, assuming the reed in the positionof Fig. 2and moving'rearwardly or toward the left, the harnesses haveoperated to change the shed and the fingers 23 have swung downwardly tothe full line positionto present a series of guiding eyes throughout thelength of the reed. The cams 69 then raise the lower feed rolls 21 whichgrip the filling and start feeding it forwardly through these eyes andthis motion may continue during the retreating movement of the reed andduring the first part of its forward movement, the reed not beingstopped while the pick of filling is inserted. The length of time duringwhich this feeding action iscarried on and its speed will depend. tosome extent upon the width of the fabric being woven. The cams thenpermit the rolls 21 to be moved downwardly to interrupt this feedingII1OV61116]1t,'1)l16 filling, which preferably has been drawn forwardfrom a large supply coil, is severed at the intake side of the reed andas the reed moves forward the fingers 23 are swung to the dotted lineposition of Fig. 2, releasing the pick of filling which is beaten upinto the fell of the cloth as the reed reaches its forward centerposition. The cutter for severing the filling is preferably located onthe reed and I have herein indicated at 71 (Fig. 1) its position at theinner side of an apertured upright 73 at the end of the reed nearer thefeed rolls. As the particular construction of this cutter forms no partof the invention herein claimed and as it may take widely varying forms,I have deemed it unnecessary to illustrate it in detail. It may, ifdesired, be operated in the forward part of the reed movement by meanssimilar to those utilized for operating rock shaft 25.

In the preferred embodiment of the invention shown the feed rolls arestationary at the side of the loom while the reed reciprocates'constantly and I preferably pro vide means for carrying or guiding thestrand between the rolls and the reed. I have herein shown (see Fig. aswinging guide 7 5, conveniently in the form of a tube fitting thefilling sufficiently close to prevent any buckling of the same,interposed'betweena' fixed guide 77 at. the bite of the feed rolls andthe apertured upright 73 at the end of the reed having an opening inalignment with the eyes thereon, Th guide invention.

tube 75 is mounted to swing in a horizontal plane as the reedreciprocates and for this purpose one of the elements between which itextends, herein the fixed. guide'77 adjacent the feed rolls, is recessedor socketed and the end of tube 75 works therein in a manner somewhatlike a 'ball and socket joint. The opposite end of the tube may beprovided with a shoulder '79 while the upright 73 on the. reed has anopposing shoulder 81 and about these shoulders is placed a helicalcompression spring 83 which suspends the right hand end of the tube,holds the left hand end (see Fig. 5) seated in the socket on guide 77and permits a swinging movement thereof as inclicat-ed by the dottedline in Fig. 5. The construction also permits the 'ready removal of theguide tube which is of considerable advantage in the case of anystoppage or breakage of the filling. To permit it to be removed it needonly be pressed toward the right in Fig 5, compressing spring 83 untiltheleft hand end is freedfrom the socket in which it works, and'the-tubemay then be lifted out.

I have described. in detail the particular embodiment of my inventionshown by way of example in the accompanying drawings.

The detailed character of the description has had for its'object to makeclear what is there shown and it isnot to be understood as definitive ofor limiting the. scope of the Obviously the construction might be widelyvaried without departing from the spiritv of the invention.

What I claimas new and desire to secure by Letters Patent I shallexpress in the following claims.

1. In a loom, in combination, a reed reciprocating with an incessantuniform motion, elements cooperating with reed dents to provide guideeyes for a shot of filling, means for moving said elements'to open theeyes to release the filling at about the forward position of the reed,and feeding means for a filling strand located at the loom side andrelatively stationary-as regards the movement of the reed, operatingintermittently on the filling to feed the same during a part of themotion of the reed while said eyes are closed and in itself by saidoperation effective to traverse the filling completely across thefabric.

2. In a loom, in combination, a reed reciprocating with an incessantuniform motion, elements cooperating with reed dents to provide guideeyes for a shot of filling, means for moving said elements to open theeyes to release the filling at about the forward position of the reed,feeding means for afilling strand. located at the loom side andrelatively stationary as regards the movement of the reed, operatingintermittently on the filling to feed the same during a partof themotion of the reed while said eyes are closed and m itselfby saidoperation effective to traverse .the filling completely across thefabric, and a device inj terposed between said feeding means and thereedadapted to maintain a continuous guiding control of the filling betweensaid elements during its projection.

3. In a loom, in combination, an incessantly reciprocating reed,elements cooperintermittently thereon during a part of the' motion ofthe reed while said eyes are closed, and a swinging guide for thefilling strand connecting said means and the reed.

4. In a loom, in. combination, an incessantly rectilinearlyreciprocatingreed, elements cooperating with reed dents to provide guideeyes for the filling strand, means for moving said elements to open.said eyes to release the filling at about the forward position of thereed, means at the loom side for projecting a filling strand in theplane in which the eyes move, a swinging guide for the strand'interposedbetween said projecting means and the reed and means for operating theprojecting means during av part of the motion of the reed while saideyes are closed.

5. In a loom ofthe' class described a reciprocating reed,ua'rock shaftextending therealong, fingers carried by the rock shaft having recessedportions opposing the dents of the reed, an arm on the'shaft and a fixedcam adjacent thereedcooperating with said arm.

6. In a loom, oi the class described a reciprocating reed, a rock shaftextending therealong,- fingers individually adjustable angularly aboutthe shaft having recessed portions opposing the dents of the reed, anarm on the shaft and a. fixedcam adjacent the reed cooperating with saidarm.

7. In a loom of the class described a reciprocating reed, a rock shaftextending therealong, fingers having recessed. portions cooperating withthe dents of the reed and engaged with said rock shaft to be liftedthereby away from said dents and normally individually springpressedtoward the same. and means for intermittently rocking the shaft.

8. In a loom of the class described a reciprocating reed, a rock shaftextending therealong, :fingers having recessed portions cooperating withthe dents of the reed, set screws adjustably engaging the fingersindividually with the shaft to be lifted thereby away from the dents,said fingers being normally spring pressed toward the same, and

means for intermittently rocking the shaft.

9. In a loom of the class described a reciprocating reed, a rock shaftextending therea-long, fingers having hubs on the rock shaft, set screwsengaging said hubs individually therewith, said lingers having recessedportions cooperating with the dents of the reed and means forintermittently rocking the shaft.

l a pivotally mounted guide tube between said guides.

ll. in a loom, in combination with a reciprocating reed which provides aguideway through the shed for supper-ti the filling during its insertionand including guide at one end of the reed, mean the loom side forfeeding the filling strand inclridinga guide through which. the fillingpasses, and a removable guide tube extwiding between said guides andconnected .e eto for swinging movement, the connection at one endcomprising a spring.

12. In a loom, in combination with a reciprocating reed which provides aguideway through the shed for supporting the filling duringits'insertion and including a guide at one end of the reed, means at theloom side for feeding the filling-strand including a guide through whichthe filling passes, one of said guides having a socket and the other a,shoulder, a tube having one end working in the socket and at the otherend a cooperatlng shoulder and a compression sprlng be tween theshoulders.

13. In a loom, in combination with means providing'a guideway throughthe shed for supporting the filling during its insert-ion, the feedingmeans for the filling comprising cooperating feed wheels therefor, oneof said wheels being mounted in sliding box, means for synchronouslyrotating said wheels including a universal joint to said one wheel, anda cam for reciprocating said box.

let- The filling guiding element having a hub and an extension therefromprovided at its end with a groove along one side, the intermediateportion being cored out to accommodate a spring and having provision foranchoring an end of the spring.

15. In. a loom, in combination, an incessantly reciprocating reed,elements cooperating with reed dents to provide guide eyes for a shotoffilling, means for moving said elements to open said eyes to release thefilling at the forward position of the reed, means at the loom side forprojectinga filling strand through the eyes operating intermittentlythereon during a part of the motion of the reed while said eyes areclosed, a I

carried by the reed at-the end thereof adjacent the projecting meansthrough which the filling passes and means for severing the fillinginwardlyi of said member.

16. In a loom, in combination, an inces santly reciprocating reed,element-s cooperating with reed dents to provide guide eyes for ashotfilling, means for moving said elements to open said eyes to releasethe filling at the forward position of the reed,

means at the loom side for projecting a filling strand through the eyesoperating intermittently thereon during a part of the motion of the reedwhile said eyes are closed, a member on the end; ofthe reed ad acenttheprojecting means through which the filling passes, a device providing acontinuously effective guide between said means and said inwardly oftsaid member.

17. In a loom, in combination, eating reed, elements cooperating withreed dents to provide guide eyes for .a shot of filling, means formoving said elements to open said eyes to release the filling at'theforward position of the reed, means at the loom side for )rojecting theend of a filling strand through said eyes while they are closed, amember carried by the reed at the end thereof adjacent the projectingmeans through which the filling passes and means for severing thefilling inwardly" of said member.

In testimony whereof, I have signed my name to this specification.

GEORGE B. Anemia.

member and means for severing the filling a recipro-

